(X + 1) – X2 + 2 = 0 B) 2

Bài 2: Tìm x biết:

a) x.(x + 1) – x

²

+ 2 = 0 b) 2.(3x + 2) – (2x + 12) = 0

c) 2x

³

(2x – 3) – x

²

(4x

²

– 6x + 2) = 0 d) (3x + 2)(x – 1) – 3(x + 1)(x – 2) =

4